Enchanted By His Charm - Chapter 856 : Now, Make It Up

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

“If I told you about the darkness inside of me, would you still look at me like I'm the Sun?”******Annalise's life changed the very night she was married off to the Dark Lords who resided in the Cursed Castle. She was offered to them as a sacrifice to save their Empire.No one knew anything about those residing inside the Cursed Castle except that there were three of them, all men, and they all were very powerful.There was a dark force invading the peaceful lives of the people of Seelie Empire, people were disappearing and unseen things were happening. And the High Priestess confirmed that the Seelie Realm would need the help from the Dark Lords to win this battle against the unknown.Annalise ended up becoming the pawn as the only unmarried girl with royal lineage and the title of a Princess. To show their sincerity about the treaty, the royal family offered her hand in marriage to the Dark Lords, and to everyone's surprise, the Lords agreed. But they had a condition - she needed to marry all three of them!To save her Empire and people, Annalise agreed to marry all three Lords only to find that none of them showed up at the wedding.How was Annalise going to handle her married life, and her three husbands who were not only handsome beyond words but also more powerful and mysterious than people thought? Especially when they had a great battle to fight!

Octavius, misled by friends, embarks on a quest to clear his father's name, ultimately facing a tragic end with his sister.Their journey results in devastating loss, leaving him powerless and yearning for revenge against those who harmed his family. Spirits offer him a chance to reincarnate, but he refuses, saying;“What’s the point of a new life if I keep running from my problems”The entities are taken aback by his unwavering decision, having never encountered a spirit who refuses to escape their troubled past. They warn him about the evil being that now resides in his old body, but that only motivates him. He believed In the saying - to defeat a monster, you have to be twice as monstrous.Embracing his fate as The Phantom's Gambit, they traverse the shadowy path of retribution, their identities blur, secrets unravel, and the line between savior and monster fades.This is a tale of darkness and redemption, where justice is a blade, and revenge is the only way forward.

Yang Feng somehow transmigrated into a different world and received a legacy of an ‘ancient high tech’ family, which does not directly raise his power, but gives him the technology to build things which are way more advanced than the seemingly medieval world.